Harrow



2 Sheets-Sheet 1. S. RITTY. HARROWu (No Model.)

No. 423,815. Patented Mar. 18, 1890.

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.4/1. Wilda (No Model.) 2 SheetsSheet 2.

S. RITTY. HARROW.

No. 423,815. Patent d Mar. 18, 1890.

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U ITED STATES PATENT OFFICE.-

SEBASTIAN RITTY, OF DAYTON, OHIO.

HARROW.

SPECIFICATION forming part of Letters Patent No. 423,815, dated March 18, 1890. Application filed September 5, 1889. Serial No. 323,020. (No model.)

To all whom it may concern.-

Be it known that I, SEBASTIAN Rrrrv, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in I-Iarrows, of which the following is a Specification.

My invention relates primarily to that class of harrows in which two gangs of rotary disks mounted upon shafts are supported by hangers from overhead gang-beams hinged near their outer ends to a cross-timber of the draft frame constituting the barrow-head, that they may play up and down and back and forth to follow the inequalities of the ground, and as regards such construction the improvement consists in a novel hinge whereby such vertical and horizontal play is permitted; and it relates, secondly, to an improved scraper for the disks of such gangs capable also of application to barrow-disks otherwise mounted, and to improved means for moving such scrapers, one for each disk, simultaneously.

In the drawings, Figure 1 is a perspective View of a harrow embracing my invention. Fig. 2 is an enlarged detail of one of the scrapers in perspective and attached to the gang head or beam. Fig. 3 is a detail of the upper part or shank of said scraper in inside elevation and vertical section. Fig. 4 is an enlarged detail of the apparatus for operating a gang of scrapers. Fig. 5 is an enlarged detail in rear elevation of the improved hinge for connecting the gang-beam with the trans verse frame-timbers. Fig. 6 is a similar enlarged detail of said hinge in transverse section through the barrow-head and gang-beam. Fig. 7 is a top plan view thereof on the same scale as the two preceding figures, and Figs. 8 and 9 represent in inside elevation and top plan view the pivot-bearings for said hinge.

A is the draft tongue, having at its rear the transverse frame-timber or harrow-head B, braced from the draft-tongue by hounds b and carrying the seat-standard O and seat O, as usual in this class of machines. Upon the draft-tongue is a segment (1, into which latches the controlling-lever D, connected in the or dinary manner with the inner end of the gang-beams by links, so that said beams may beset at varying angles.

E represents the gang-beams, of which there are two, supporting by means of hangers e a shaft E, upon which are mounted the harrow-disks F, properly spaced by means of sleeves f on said shaft, while near the outer end of each of these gang-beams and to the top thereof is secured a strong metal bridlepiece G, open at the rear and projecting, as to both arms, sufficiently to admit a pivot-bolt G, preferably encircled by a sleeve g, which extends from arm to arm and serves, in connection with the bolt and its nut g, to prevent springing in either direction. This metal bridle-piece is rectangular in outline, and the space between its arms is a little more than the thickness of the barrow-head or transverse timber of the draft-tongue. At the end of this harrow-head, both at top and bottom, are secured wear-plates h, which being added to its thickness are sufficient to cause it to fit snugly between the arms of the bridle-piece, and to its rear face, behind these wear-plates, is secured a pivotal cappiece or bearing H, having a recess h sufficient-to receive the pivot-bolt and its sleeve and of such outline that said bolt and sleeve may be allowed lateral vibration in the direction of the length of the cross-timbersthat is to say, the bolt and sleeve will be closely confined at one point-as, for instance, the lower end 7L2 of the recesswhile above this point the recess enlarges or flares to permit such lateral vibration.

In connecting the gang-beam to the harrowhead or cross-timber the bolt is first withdrawn from the bridle-piece, the latter slipped over the end of the barrow-head until it embraces the wear-plates thereon and the holes through its arms are in line with the recess in the pivotal cap, into which the sleeve will have been inserted just before they are brought into line. Then the bolt is passed through bridle-piece and sleeve and confined by its nut, and the fastening is completed when the link leading to the controlling-lever will be hooked or otherwise secured in its proper cyebolt, and the gang be ready for use. In this construction it will be observed that the bridle-piece serves as a guide to the horizontal play of the gang-beam upon the pivotbolt, while the latter prevents endwise escape of the harrow-head and its cap or bearing permits the vertical play of the gang-beam.

The horizontal play is further controlled or confined as to its upward limit by the .wearplate 5 near the inner end of the harrowbeam and the metal runner I on the barrow-head immediately above said wear-plate, as customary in gangs having this movement.

Various forms of scrapers or clearers for the harrow-disks have heretofore been employed, some of them being moved simultaneously by hand-levers applied at the outer ends of the barrow-head or otherwise, and others being independent and pressed constantly against the disks by springs. One of the best known has a spring-pressed shank extending within the periphery of the disk and a blade pivoted to the end of said shank at a point within said periphery, so as to freely accommodai e itself to the convex surface of the disk.

I propose to employ a scraper rigid or integral with its shank and to pivot this shank to the rear edge of the gang-beam in such manner that it may be moved laterally and yieldingly against spring-pressure along said edge, so as to bring the blade against and cause it to conform to the concave surface of the adjacent disk. I further propose to connect each of the scrapers in the gang by a rod and at the innerend of the gang-beam to pivot a small foot-lever connected by a link to said rod, so that the driver without leaving his seat can operate the scrapers of one or both gangs by the pressure of one or both feet upon the foot lever or levers immediately beneath him, notwithstanding the varying angular adjustments of the gang.

The form of scraper and its shank and the method of attaching it to the gang-beam and applying spring-pressure to obtain the movement and produce the result stated may be considerably varied; but for the purpose of the present description the scraper K may be assumed to be, in the main, a plate of metal twisted to bring the scraping-edge 7,: in the proper direction to meet the revolutions of the disk and having an enlarged shank K, which rests fiat against the rear edge of the gang-beam. Cast with or suitably attached to the outer face of this shank is a box or socket 76', open on its inner side transversely of the shank and parallel with the beam to receive a coiled spring 7: The inner end of the box is longitudinally slotted for a short distance, as at I, and through the slot is passed a bolt L, which serves to secure the scraper to the gang-beam, and at the same time as a pivot therefor and as a seat for the end of the coiled spring. The slot through the cap permits the scraper to be drawn laterally upon the bolt, thus compressing the spring.

M is a rod or bar connected to each one of the series of scrapers in the gang by pivotpins 021, so that they may be moved simultaneously. This bar will pass along and be pivoted to the scrapers a short distance below their pivotal connection with the gang beam and just above the peripheries of the barrow-disks, and its endwise motion inward will draw the entire series against the concave faces of the disks. Should the lower ends or points of the scrapers touch said faces first the continued movement of the bar will displace the shanks laterally upon their pivotbolts against the stress of the springs until the entire edge of the scraper is in contact with the surface of the disk and in active operation. \Vhenever the bar is released, the springs will carry the shank outward, and the weight of the scrapers will remove their blades from contact with the disks, thus saving both wear and draft-power. In order to conveniently control such endwise movement of the scraper-bar, a small foot lever or treadle N is pivoted in a suitable bracket n at the rear inner end of each gang-beam immedi' ately beneath the drivers seat, and from an arm of this lever a link n extends to a suitable point 21 upon each scraper-bar, advisably to a point about the center. Thus when ever the disks need clearing, a matter under the immediate observation of the driver, he

can by the pressure of one foot or the other throw the scrapers of the gang into action and hold them in action until they have done their work. Then by simply removing his foot from the lever or treadle they will all move automatically away from the disks and out of action.

Having thus described my inventiomwhat I claim, and desire to secure by Letters Patent,

1. The combination, substantially as here inbefore set forth, of a harrow-head, the pit otal bearing secured to the outer end thereof, the gang-beam, the bridle-piece secured to the outer end thereof and open at the end adjacent to said bearing, and the vibratable pivot-bolt passing through the ends of said bridle-piece and the bearing on the harrowhead.

2. The combination, substantially as here inbefore set forth, of the barrow-head, the wear-plates secured at the outer end thereof to the top and bottom surfaces, the pivotal bearing secured to an edge thereof opposite the wear-plates, the gang-beam, the bridlepiece secured to the outer end of said gang beam, with its arms adapted to embrace the harrow-hea ll and its wear-plates, and the bolt passing through the ends of said bridleqgiece and the pivotal bearing on the harrow-head.

3. The combination, substantially as hereinbefore set forth, of the harrow-hcad, the gang-beam, the bridle-piece, the pivotal cappiece, the sleeve, and the bolt.

l. The combination, substantially as hereinbefore set forth, witha harrow-disk and the overhead gang-beam, of the scraper pivoted to said gang-beam and adapted to move later ally on its pivot and transversely thereof, and means for controlling and inducing such lateral movement.

5. The combination, substantially as here tog inbefore set forth,with a harro'W-disk and an overhead gang-beam, of thescraper pivoted to saic gang-beam and adapted to move laterally on its pivot and transversely thereof, a spring normally resisting such lateral movement to hold the scraper out of action, and a rod pivoted to said scraper between its pivot and the periphery of the barrow-disk to dravv the scraper into action.

6. The combination, substantially as hereinbefore set forth, of a harroW-disk, an overhead gangbeam, a scraper having its shank resting against the rear edge of such overhead gang-beam and transversely slotted, the pivot-bolt normally at the inner end of said slot confining the scraper to the gang-beam, a spring resting at its outer end against the shank of the scraper and at its inner end against the pivot-bolt, and a draw-rod for said scraper pivoted thereto between the harrowdisk and the gang-beam.

7. The combination, substantially as hereinbefore set forth, of a gang of barrow-disks, a gang-beam, a series of scrapers, one for each harrow-disk, pivoted to said gang-beam and adapted to move laterally thereon trans versely of their pivots, a spring or springs resisting such lateral movement, a rod or bar pivoted to each scraper between the gangbeam and the periphery of the harroW-disks, and means for moving said rod or bar endwise.

8. The combination, substantially as hereinbefore set fOltlLOf a gang of barrow-disks,

a gang-beam, a series of scrapers, one for each barrow-disk, pivoted to said gang-beam and adapted to move laterally thereon transversely of their pivots, springs for each scraper resisting such lateral movement, a rod or bar pivoted to each scraper between the gangbeam and the periphery of the harroW-disks, and means for moving said bar or rod endwise.

9. The combination, substantially as hereinbefore set forth, of the gang of harrowdisks, a gang-beam, a series of scrapers, one for each harroW-disk, a common controllingrod for said scrapers, a treadle or foot-lever pivoted to the rear edge of the gang-beam at its inner end beneath the drivers seat, and a link connecting said treadle or foot-lever with the controlling-rod.

10. The combination, substantially as hereinbefore set forth, of a gang of harrow-disks, the gang-beam, the series of scrapers pivoted to said gang-beam and arranged to move laterally on their pivots and transversely thereof against spring-pressure, the treadle or footlever pivoted at the rear inner edge of the gang-beam, the controlling-rod pivoted to each of said scrapers between the gangbeam and the periphery of the barrow-disks, and the link connecting said rod with the treadle.

SEBASTIAN RITTY. Witnesses:

S. H. CARR, D. W. ALLAMAN. 

